{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:NOYW3FR6NQML24YFJDOVRPT6IC","short_pith_number":"pith:NOYW3FR6","canonical_record":{"source":{"id":"1907.06620","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-07-15T17:34:36Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"title_canon_sha256":"ee0059bc4684cb479eab5e6390923ea3d15ec0a1ddad195f1908a66ac8f46a45","abstract_canon_sha256":"ea7d04aa13f5245523f54c4a6a65db33d870b6ee83d99751a0b175fe8cbc8fc5"},"schema_version":"1.0"},"canonical_sha256":"6bb16d963e6c18bd730548dd58be7e40a6ec7aa31af61c70e6f82d0b8c96cabc","source":{"kind":"arxiv","id":"1907.06620","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.06620","created_at":"2026-05-17T23:40:37Z"},{"alias_kind":"arxiv_version","alias_value":"1907.06620v1","created_at":"2026-05-17T23:40:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.06620","created_at":"2026-05-17T23:40:37Z"},{"alias_kind":"pith_short_12","alias_value":"NOYW3FR6NQML","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"NOYW3FR6NQML24YF","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"NOYW3FR6","created_at":"2026-05-18T12:33:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:NOYW3FR6NQML24YFJDOVRPT6IC","target":"record","payload":{"canonical_record":{"source":{"id":"1907.06620","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-07-15T17:34:36Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"title_canon_sha256":"ee0059bc4684cb479eab5e6390923ea3d15ec0a1ddad195f1908a66ac8f46a45","abstract_canon_sha256":"ea7d04aa13f5245523f54c4a6a65db33d870b6ee83d99751a0b175fe8cbc8fc5"},"schema_version":"1.0"},"canonical_sha256":"6bb16d963e6c18bd730548dd58be7e40a6ec7aa31af61c70e6f82d0b8c96cabc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:37.247600Z","signature_b64":"FSE1sj98nlqNbQXZmNi4rL2FVO0HvtDobLy7qEVcAvJLzQ2T+cODtPpxIeP5SQz7oXdo6ykWpVbvLybCY3wvAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6bb16d963e6c18bd730548dd58be7e40a6ec7aa31af61c70e6f82d0b8c96cabc","last_reissued_at":"2026-05-17T23:40:37.246950Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:37.246950Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.06620","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:40:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aNRT8KkPR9O3XmAf6v8kAQgNa60BhWCkuxGmrczaead1fZ+PKoEwaZfiA6KKyMmyu+RtLBKnL2Ypjz8tqOarAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T03:07:46.931188Z"},"content_sha256":"2ccf5503f8e15dae4bf25f2299a9d616663fda59554d903ecfbd98bf3d04304f","schema_version":"1.0","event_id":"sha256:2ccf5503f8e15dae4bf25f2299a9d616663fda59554d903ecfbd98bf3d04304f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:NOYW3FR6NQML24YFJDOVRPT6IC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Maxwell plates and phonon fractionalization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"primary_cat":"cond-mat.soft","authors_text":"Kai Sun, Xiaoming Mao","submitted_at":"2019-07-15T17:34:36Z","abstract_excerpt":"In the past a few years, topologically protected mechanical phenomena have been extensively studied in discrete lattices and networks, leading to a rich set of discoveries such as topological boundary/interface floppy modes and states of self stress, as well as one-way edge acoustic waves. In contrast, topological states in continuum elasticity without repeating unit cells remain largely unexplored, but offer wonderful opportunities for both new theories and broad applications in technologies, due to their great convenience of fabrication. In this paper we examine continuous elastic media on t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.06620","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:40:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cy3Un3P3cWQhX/dG5kOluF9nuBq4PbBeRFLUO4RIESwwDQwh2pFGdtdRBG6LJ+QC+CnGnQNL1+PGLld8fw2gBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T03:07:46.931911Z"},"content_sha256":"d32bf8a34f18e3271455998e8f1d139d8c6033cc7f2b63ef7cec82395ed87a8f","schema_version":"1.0","event_id":"sha256:d32bf8a34f18e3271455998e8f1d139d8c6033cc7f2b63ef7cec82395ed87a8f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NOYW3FR6NQML24YFJDOVRPT6IC/bundle.json","state_url":"https://pith.science/pith/NOYW3FR6NQML24YFJDOVRPT6IC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NOYW3FR6NQML24YFJDOVRPT6IC/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-08T03:07:46Z","links":{"resolver":"https://pith.science/pith/NOYW3FR6NQML24YFJDOVRPT6IC","bundle":"https://pith.science/pith/NOYW3FR6NQML24YFJDOVRPT6IC/bundle.json","state":"https://pith.science/pith/NOYW3FR6NQML24YFJDOVRPT6IC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NOYW3FR6NQML24YFJDOVRPT6IC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:NOYW3FR6NQML24YFJDOVRPT6IC","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"ea7d04aa13f5245523f54c4a6a65db33d870b6ee83d99751a0b175fe8cbc8fc5","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-07-15T17:34:36Z","title_canon_sha256":"ee0059bc4684cb479eab5e6390923ea3d15ec0a1ddad195f1908a66ac8f46a45"},"schema_version":"1.0","source":{"id":"1907.06620","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.06620","created_at":"2026-05-17T23:40:37Z"},{"alias_kind":"arxiv_version","alias_value":"1907.06620v1","created_at":"2026-05-17T23:40:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.06620","created_at":"2026-05-17T23:40:37Z"},{"alias_kind":"pith_short_12","alias_value":"NOYW3FR6NQML","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_16","alias_value":"NOYW3FR6NQML24YF","created_at":"2026-05-18T12:33:24Z"},{"alias_kind":"pith_short_8","alias_value":"NOYW3FR6","created_at":"2026-05-18T12:33:24Z"}],"graph_snapshots":[{"event_id":"sha256:d32bf8a34f18e3271455998e8f1d139d8c6033cc7f2b63ef7cec82395ed87a8f","target":"graph","created_at":"2026-05-17T23:40:37Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"In the past a few years, topologically protected mechanical phenomena have been extensively studied in discrete lattices and networks, leading to a rich set of discoveries such as topological boundary/interface floppy modes and states of self stress, as well as one-way edge acoustic waves. In contrast, topological states in continuum elasticity without repeating unit cells remain largely unexplored, but offer wonderful opportunities for both new theories and broad applications in technologies, due to their great convenience of fabrication. In this paper we examine continuous elastic media on t","authors_text":"Kai Sun, Xiaoming Mao","cross_cats":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-07-15T17:34:36Z","title":"Maxwell plates and phonon fractionalization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.06620","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:2ccf5503f8e15dae4bf25f2299a9d616663fda59554d903ecfbd98bf3d04304f","target":"record","created_at":"2026-05-17T23:40:37Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"ea7d04aa13f5245523f54c4a6a65db33d870b6ee83d99751a0b175fe8cbc8fc5","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2019-07-15T17:34:36Z","title_canon_sha256":"ee0059bc4684cb479eab5e6390923ea3d15ec0a1ddad195f1908a66ac8f46a45"},"schema_version":"1.0","source":{"id":"1907.06620","kind":"arxiv","version":1}},"canonical_sha256":"6bb16d963e6c18bd730548dd58be7e40a6ec7aa31af61c70e6f82d0b8c96cabc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6bb16d963e6c18bd730548dd58be7e40a6ec7aa31af61c70e6f82d0b8c96cabc","first_computed_at":"2026-05-17T23:40:37.246950Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:37.246950Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FSE1sj98nlqNbQXZmNi4rL2FVO0HvtDobLy7qEVcAvJLzQ2T+cODtPpxIeP5SQz7oXdo6ykWpVbvLybCY3wvAQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:37.247600Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.06620","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2ccf5503f8e15dae4bf25f2299a9d616663fda59554d903ecfbd98bf3d04304f","sha256:d32bf8a34f18e3271455998e8f1d139d8c6033cc7f2b63ef7cec82395ed87a8f"],"state_sha256":"f57aee415e0502756710a047917b5d1b8e74314872f30bf5d52380a45ee0ad36"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kdCONicBXC82mFBtgOJQahf/cWzDbq2/hQ7QkXrd7jMCwMpuDhARz64V2A5FNloX3N5HnB0dLdVj4pMEwgq3Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T03:07:46.937066Z","bundle_sha256":"9e52538304cdbe3246f917541a94b5daee4b0928d50e2acbe66c467d1607be4e"}}